The act of exiling a card with foretell does not use the stack , and your opponents don't get priority as a result of you using a foretell ability
It's a simple calculation really - more removal cards equals less space for sliver cards
They don't copy whether that permanent is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on
Examples: Token deck needs token makers and ways to profit from tokens Graveyard deck needs enablers (mill, discard), recursion, and answers to grave hate Spellslinger deck needs cheap spells, cost reduction or mana, and payoff triggers Voltron deck needs protection and evasion more than it needs one extra sword This is also where your ramp and draw choices should match your plan
It was an English card and I guess the OCG representative only means either it was only for the OCG players and/or it was an Asian-English/OCG Card
But the other stuff is all game
